Improvement in carriage-springs



A. c. STOWE.

Carriage Spring. No. 84,316. Patented Nov. 24, 1868.

ANSON C.

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STOWE, OF SAN JOSE,CALIFORN1A.

Letters Patent No. 84,316, dated Nocember 24, 1868.

IMPROVEMENT IN CARRIAGE-SPRINGS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that I, Anson G. Brown, of San Jos, county of Santa Clara, State of California, have inve-nted an Improved Carriage-Spring; and I do hereby declare. the following description and accompanying drawings are sufficient to enable any person skilled in the art or science. towhichit most-nearly apperta-ins, to make and use my said invention or improvements without further imention or experiment.

The object of my invention is to so connect the two side springs of a carriage that a weight placed on any portion of the carriage will depress each side equally, and prevent the strain to the springs occasioned by the frequent wrenching they are subjected to in getting in and out of the carriage.

The axle-bed and cross-bar of the carriageare connected by reaches, and have, at their ends, suspended by shackles, semi-elliptic springs, upon which the body of the carriage rests. Two shafts extend across from one reach to the other, one near each end, each having three bent cranks, one in the centre, and one at each end, the middle ones being joined by a connecting-rod. At each end of the carriage-bed is a bar, which passes from one side to the other, and both passing across on the same side of the shaft. The outside cranks of the two shafts are attached to the bars aboveby means of links, thus joining the whole together, and causing the slightest weight on one side to be equally distributed, causing a like depression of the springs on both sides.

To more fully illustrate and explain my invention, reference is had to the accompanying drawings, forming a part of this specification, of which Figure 1 is a side sectional elevation of my improved spring.

Figure 2 is a plan.

A is the axle-bed, and B, the cross-bar of a carriage, connected by'the reaches 0 G.

Semi-elliptic springs, D D, are attached to the ends of the axle-bed and cross-bar by means of shackles a a; Upon these springs the body of the carriage is'placed, bars b b forming across each end.

In order to depress the springs ofthe carriage equally, 1 place across the reaches, one at each end, two shafts, E E, each of which is provided with three corresponding cranks, one, g, in the middle, and one, d, at each end.

The cranks, at the ends, are bent at right angles to the crank in the middle, and a connecting-bar, c, joins the two middle cranks The end or outer cranks are attached to the bars b above by means of links 0 c e e.

The arrangement of the parts is such that the two bars bb are both on the same side of the crank-shaft, so that the outer cranks, when no Weight is brought to bear on the carriage-body, stand in a line with the reaches, while the middle crank stands perpendicular.

When aweight is brought to bear on any portion of the carriage, the spring on that side is depressed. This causes the links 0 c to depress the outer cranks, (l, and cause the middle crank, g, to turn, thereby turning the cranks at the opposite end, lowering both springs simultaneously, the connecting-bar c aidin gin operating the shaft at the opposite end of the carriage.

Having thus described my invention,

What I claim, and desire to secure by Letters Patent, is

The shafts E E, with their cranks or bent arms d and g, and the connecting-rod 0, together with the links. 0 e and rods 1), the whole operating on the springs D as an equalizing-device, substantially as herein described.

In witness whereof, I have hereunto set my hand and seal.

ANSON O. STOWE. [n.s] Witnesses:

Gno. H. STRONG, J. L. Boosn. 

